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okay, I figured as much. What's the easiest way to accomplish the pressure test withthe zone on? I have a boiler drain after my manifold for draining purposes. Can I check static pressure there with a pressure gauge and test it there as well while the zone is on?Yes, you are way off in your thinking.
It is now safe to assume you have overdrawn your account, so far as pertains to system flow. Remove all the nozzles and try a size smaller. That would be two 3 gpm nozzles for the middle heads on a zone, and two 1.5 gpm nozzles for the end heads. (since we are assuming you now are using 4 gpm and 2 gpm nozzles)
Before doing anything, take more pressure measurements. Again, with the system off, and then, with the zone turned on.
Cda irrtech
Unregistered
So I went ahead and mocked up one zone with 1" pipe and 4 Orbit Heads that I bought from lowes just to make sure that my design looked good. I used pvc and connected the 3/4" female inlet head to a female 1"x1"x3/4" femail tee via a male 3/4" adapter. I got decent coverage but not as much as I expected using the 4gpm nozzle. I was only getting around 27 feet. I was wondering If I need to step down the inlet pipe to the head to get better pressure? Am I way off in my thinking?